Table of Contents
ISRN Mechanical Engineering
Volume 2013, Article ID 167869, 4 pages
http://dx.doi.org/10.1155/2013/167869
Research Article

Processing and Properties of Nanocrystalline CoCrFeNiCuAlTiXVMo High Entropy Alloys by Mechanical Alloying

1Wigner Research Center for Physics, Hungarian Academy of Sciences, P.O. Box 49, Budapest 1525, Hungary
2Bay Zoltán Nonprofit Ltd. For Applied Research, Fehérvári út 130, Budapest 1116, Hungary
3Transilvania University, B-dul Eroilor nr. 29, 500036 Brasov, Romania

Received 25 June 2013; Accepted 30 July 2013

Academic Editors: J. Hu and Y. Zhao

Copyright © 2013 É. Fazakas et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Fabrication of nanocrystalline equiatomic high entropy alloys is a crucial aspect for the product of many tools. The present study describes the synthesis of nanocrystalline equiatomic CoCrFeNiCuAlTiXVMo (X = Zn, Mn) high entropy alloys by mechanical alloying and their characterization by XRD and SEM. The CoCrFeNiCuAlTiXVMo (X = Zn, Mn) high entropy alloys have BCC solid solution with crystallite size less than 10 nm. These alloys are stable even after annealing at 600°C for 1 h. The hardness of the high entropy alloys is found to be 7.6 and 6.2 GPa, respectively.